One term that's used in this industry a lot is this notion of 'feeding the beast.' You've got all of these people whose livelihoods are dependent on it. There are enormous pressures to keep material going into it, and the pressures to feed it are not irrational. They're the basis of your business.
My best advice came by examples. A supportive environment at home, school, and grad school. Support at the New York Institute of Technology, then George Lucas, Steve Jobs, and Bob Iger. The examples meant that I should support other people, even when things aren't going well. It will pay off.
I have received a great deal of benefit from the simple yet difficult practice of learning to stop the internal voice in my head. I learned that the voice isn't me, and I don't need to keep rethinking events of the past nor overthink plans for the future. This skill has helped me both to focus and to pause before responding to unexpected events.
Part of being the successful Pixar is that we will take risks on teams and ideas, and some of them won't work out. We only lose from this if we don't respond to the failures. If we respond, and we think it through and figure out how to move ahead, then we're learning from it. That's what Pixar is.